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Community Water System · PWS LA1103079

St Tam Parish - Briarwood Terrace

Covington, Louisiana 70433 - drinking water served from groundwater sources to 17,536 people, tracked in EPA SDWIS and UCMR5.

17,536
People served
48
EPA violations
24
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 48 drinking-water violations at St Tam Parish - Briarwood Terrace, 50% of them health-based - below the Louisiana per-system average.

48
Total EPA violations on record
50%
Health-based (MCL / treatment failure)
17,536
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: St Tam Parish - Briarwood Terrace

St Tam Parish - Briarwood Terrace is a local-owned community water system that delivers drinking water to 17,536 residents in Covington, Louisiana (St. Tammany Parish County) through 5,123 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 48 total violations for this system , of which 24 (50%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 15 monitoring and reporting violations are on file. The most recent violation on record dates to 2013.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 24 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Louisiana, EPA tracks 1,234 public water systems serving 5,316,532 people, with 115,060 cumulative violations and 62,164 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 93.2 violations. Statewide, 218 of 265 UCMR5-tested systems have reported PFAS detections (82.3%).

St Tam Parish - Briarwood Terrace's 48 violations sit below the Louisiana average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
17,536
Total Violations
48
Health-Based Violations
24
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
5,123
County
St. Tammany Parish
School/Daycare
No
MCL Violations
24
Monitoring Violations
15
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 24 2006
Chlorine MR 4 2013
TTHM MR 4 2013
Total Haloacetic Acids (HAA5) MR 4 2013
Consumer Confidence Rule Other 3 2000
Coliform (TCR) MR 3 1991

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 290 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 7/26/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
PFOA 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
PFBS 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 7/26/2023 <2.00 ppt 2.00 ppt Not Detected
PFOS 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
PFMPA 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 7/26/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeS 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
PFTA 7/26/2023 <8.00 ppt 8.00 ppt Not Detected
NMeFOSAA 7/26/2023 <6.00 ppt 6.00 ppt Not Detected
PFHxA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 7/26/2023 <7.00 ppt 7.00 ppt Not Detected
PFDA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
PFHxS 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 7/26/2023 <2.00 ppt 2.00 ppt Not Detected
NEtFOSAA 7/26/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 7/26/2023 <6.00 ppt 6.00 ppt Not Detected
PFTA 7/26/2023 <8.00 ppt 8.00 ppt Not Detected
PFDoA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpS 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 7/26/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 7/26/2023 <2.00 ppt 2.00 ppt Not Detected
PFTrDA 7/26/2023 <7.00 ppt 7.00 ppt Not Detected
PFOA 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 7/26/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 7/26/2023 <4.00 ppt 4.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for St Tam Parish - Briarwood Terrace.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID LA1103079 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Louisiana Drinking Water Authority

Louisiana's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find LA regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2013 Chlorine MR 4 SDWIS / LA1103079 / 0999
2013 TTHM MR 4 SDWIS / LA1103079 / 2950
2013 Total Haloacetic Acids (HAA5) MR 4 SDWIS / LA1103079 / 2456
2006 Coliform (TCR) MCL 24 SDWIS / LA1103079 / 3100
2000 Consumer Confidence Rule Other 3 SDWIS / LA1103079 / 7000
1991 Coliform (TCR) MR 3 SDWIS / LA1103079 / 3100

How St Tam Parish - Briarwood Terrace Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric St Tam Parish - Briarwood Terrace Louisiana avg Federal benchmark
Total violations 48 93.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 24 50.4 Indicates a contaminant exceeded a federal MCL
PFAS detection None 82.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 17,536 4,308 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,234 regulated public water systems in Louisiana.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is St Tam Parish - Briarwood Terrace water safe to drink? ▼
St Tam Parish - Briarwood Terrace (PWS ID: LA1103079) has 48 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 17,536 people using Groundwater sources.
How many people does St Tam Parish - Briarwood Terrace serve? ▼
St Tam Parish - Briarwood Terrace serves 17,536 people in Covington, Louisiana. It is a Local-owned system using Groundwater water sources with 5,123 service connections.
What type of violations does St Tam Parish - Briarwood Terrace have? ▼
St Tam Parish - Briarwood Terrace has 48 total violations: 24 health-based violations (MCL exceedances or treatment failures), 15 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in St Tam Parish - Briarwood Terrace water? ▼
No. St Tam Parish - Briarwood Terrace was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does St Tam Parish - Briarwood Terrace use? ▼
St Tam Parish - Briarwood Terrace uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.